Ubuntu Security Notice 979-1 – Stefan Cornelius of Secunia Research discovered a boundary error during RLE decompression in the “TranscribePalmImageToJPEG()” function in generators/plucker/inplug/image.cpp of okular when processing images embedded in PDB files, which can be exploited to cause a heap-based buffer overflow.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/93208/USN-979-1.txt
Source: https://packetstormsecurity.com/files/93208/Ubuntu-Security-Notice-979-1.html